Feed-water heater for boilers.



' PATBNTED 00131, 1905.

c. D. HEYWooD. FEED WATER HEATER PoR BoILERs.

APPLIGATIUN FILED SEPT. 23, 1904.

CHARLES D. HEYWOOD, OF HOLYCKE, MASSACHUSETTS.

FEED-WATER HEATER FOR BOILERS.

No. 80e, 533D.

Specification of Letters Patent.

Patented Oct. 31, 1905.

Application filed September 23, 1904. Serial No. 225,699.

To all whom it may concern:

Be it known that I, CHARLES D. HnYwoon, a citizen of the United Statesof America, and a resident of Holyoke, in the county of Hampden andStateof Massachusetts, have invented certain new and useful Improvements inFeedl/Vater Heaters for Boilers, of which the following is a full,clear, and exact description.

This invention relates to appliances and arrangements available inconjunction with double parallel horizontal boilers and the furnacesthereunder, an object being to have the wall between the boilers andseparating the furnace-chambers one from the other serve the doublepurpose of a partition and a waterreceptacle, with the severaladvantages accruing` thereto, as hereinafter stated.

IAnother object is to make the bridge-wall available. in conjunctionwith the aforementioned partition-wall, as a water-receptacle,augmenting the water-heating capability and improving in a protectiveway the bridgewall.

As preferably carried out the invention contemplates the employment ofan inclosed metal receptacle comprising a longitudinally-ranging andcomparatively high portion and transverse oppositely-extending and lowerportions (the chambers in the median and winglike portions communicatingone with another) arranged in combination with a pair of horizontalparallel boilers and the furnacechambers thereunder, said longitudinalportion constituting the portion between and separating the boilers andfurnace-chambers, and the wing-like portions having their tops below theunder side of the boilers and constituting the bridge-walls, awater-supply pipe connecting into the said receptacle and a conduitleading from said receptacle into the boiler.

A boiler-furnace having the novel and useful peculiarity set forth asabove is illustrated in the accompanying drawings.

Figure 1 is a vertical cross-section through the furnaces for the doubleboilers, which latter are shown in end elevation. Fig. 2 is a horizontalsectional view as taken on a plane just above the furnace-grates and asindicated by the line 2 2, Fig. l. Line l 1, Fig. 2, in-

dicates the plane substantially on which the first ligure is sectionallydrawn.

In the drawings, B B represent parallel horizontal boilers arranged overthe furnacechambers A A in the most usual manner.

The wall C, partitioning the furnace-chambers one from another, is madein the form of a hollow metallic casing and for a waterreceiver.Thereceptacle-partition,madecomparatively high, as represented in Eig.l, has in open communication with its rear portion transverse hollowextensions or wings D in suitably-low arrangement to make the bridgewallof the furnace.

E represents a water-supply pipe leading into the T-shaped receptacle,and Gr represents a pipe leading outwardly and from an upper portion ofthe receptacle, it having branches, as here represented and understoodas terminating within the boilers, although the pipe Gr may be extendedotherwise and for termination in the boiler or boilers. The receptaclein the form ofa rectangular casing utilized as the dividing-wall betweenthe furnace chambers, as well also as the hollow bridge-wallconstituting wings unitary therewith, may be most practically andadvantageously constructed in a built-up manner, using boiler-platemetal, although the partition-wall and the bridge-wall may be producedas hollow casings by casting.

l/Vater being introduced into the chambers in the portions C and D Dbecoming heated augments the water-heating efficiency of the furnaces,and at the same time the liquid protects the walls of the receptaclesfrom becoming destructively impaired by the heat of the furnace-fires.

I am of course aware of the existence of feed-water appliances employedin conjunction with boiler-furnaces, and notably appliances includingwater-pipe coils between and subject to the heat of non-partitionedtirechambers of double or pluralized boilers. I am also aware that ithas been proposed to employ jacketed outer walls for furnaced chambers,to use water-containing hollow metal furnace-moutil-protecting casings,and to use lengths of pipe embedded in the side walls of thetire-chamber; but it is not my purpose to attempt to claim any of suchcontrivances, one important aim in my case being to have afurnace-setting substantially as described between and partitioningpluralized furnacechambers for the utility hereinabove renderedapparent, which is susceptible of being mounted in its position shownwith ease and expeditioned in fitting up and at a saving in expense ofboiler-Setters labor.

Y Having thus described my invention, what IOO I claim, and desire tosecure by Letters Patent, is-

l. A pair of horizontal and parallel boilers, and furnaces thereunder,and a partition between and separating the boilers and furnaces, andconstituting the inner side wall of both furnaces, and consisting of aninclosed metal receptacle for water, a pipe for supplying Water intosaid partition-receptacle, and means for aording steam relief therefrom.

2. A paii of horizontal and parallel boilers, and furnaces thereunder,and a partition between the furnaces and boilers consisting of aninclosed metal receptacle for water, hollow metal bridge-Walls arrangedright-angularly to, and connected with the lower rear portion of saidpartition-receptacle, a pipe for supplying water into the connectedpartition-receptacle and hollow bridge-walls and means for affordingsteam relief therefrom.

3. An inclosed metal receptacle comprising a longitiidinally-ranging andcomparatively high portion and transverse oppositely-extending and loweiportions, the chambers in the median and wing-like portions communi-

